300-635 Automating Cisco Data Center Solutions (DCAUTO) Question and Answers

To create an SVI using NX-API CLI JSON-RPC interface, one would typically need to construct a Python dictionary that represents the RPC payload containing the necessary commands. The request call would then be made using a library like requests where this dictionary is passed as JSON data. In general terms, without specifying exact options since they are not visible in any provided resources or within my capabilities:

One option would likely involve specifying parameters for creating an SVI including its ID number.

Another option might involve setting specific attributes for the SVI such as name, description, or IP address. References :=

Implementing Automation for Cisco Data Center Solutions (DCAUI) course: 6

Cisco Learning Network - Data Center Training Videos: 7

The Cisco Data Center Network Manager (DCNM) REST API provides a robust platform for automating various tasks in the data center. Two of its capabilities include:

A: The DCNM REST API uses the dcnm-token header for requests authentication after initial basic authentication. This token-based authentication is more secure as it reduces the need to repeatedly send credentials over the network.

E: The DCNM REST API is organized into different management areas such as Classic LAN, LAN Fabric, Media Controller, and SAN Management. This categorization allows for targeted automation and management within specific domains of the data center network.

References :=

Implementing Automation for Cisco Data Center Solutions (DCAUI) v1.0

Cisco Data Center Network Manager documentation

In Cisco NX-OS platforms, two common bootstrap technologies are supported: iPXE (Internet Protocol eXtensible Environment) and POAP (PowerOn Auto Provisioning). iPXE allows for network booting using software such as DHCP or TFTP to load an operating system over a network interface independently of data storage devices like hard disks or CD-ROM drives. POAP automates the process of upgrading software images and installing configuration files on switches that are being deployed in the network for the first time. References := Cisco NX-OS Software

Reference : https://www.cisco.com/c/en/us/td/docs/unified_computing/ucs/ucs-director/rest-api-cookbook/6-6/cisco-ucs-director-REST-API-cookbook-66/cisco-ucs-director-REST-API-cookbook-66_chapter_010.html

aci_tenant

tenant : MyCompany

state: present

Consistency of Systems Configuration: Network configuration tools like Ansible and Puppet ensure that configurations across multiple devices in a data center are uniform. This consistency reduces the risk of errors that can occur when configurations are applied manually, leading to a more stable and reliable network infrastructure12.

Automation of Repetitive Tasks: These tools automate routine tasks such as deploying updates, applying configurations, and provisioning systems. By automating these tasks, data center operations become more efficient, reducing the time and effort required for manual configuration and increasing productivity

 The DCNM API is REST-based, allowing third parties to test and develop application software. It supports a wide range of operations that can also be performed using the DCNM GUI, which uses these REST APIs to render the GUI itself. This means that the same tasks available through the API can be accessed and managed through the graphical user interface, providing flexibility in how network administrators interact with DCNM23.

References := Cisco DCNM REST API Guide, Cisco Community

The correct command to execute a Python script within the Guest Shell container on a Cisco NX-OS switch is guestshell run, followed by the path to the Python script. In this case, the script deltacounters.py is located in /home/admin/, so the full command would be guestshell run python /home/admin/deltacounter.py ethernet1/1. This command initiates the Guest Shell, which is a secure, Linux-based environment designed to run custom Linux applications, including Python scripts, on Cisco NX-OS platforms. By specifying python after guestshell run, we are instructing Guest Shell to use its Python interpreter to execute the given script with ‘ethernet1/1’ as an argument passed to it.

References:

Cisco Guest Shell Configuration Guide

Implementing Automation for Cisco Data Center Solutions (DCAUI)

 To execute an Ansible playbook named n9k.yml, the correct command is ansible-playbook n9k.yml. This command runs the specified playbook, allowing you to automate tasks on the Cisco Nexus switch using Ansible. References:

Ansible Documentation - Run Your First Command and Playbook

Ansible Documentation - Playbooks Intro

Automating Apache Web Server Deployment with Ansible Playbooks

Controlling playbook execution: strategies and more user QUESTION NO: 63 Refer to the exhibit:https://www.bing.com/images/blob?bcid=RLdoSzzf3RgHNOMBpJdfO8MMmWRU…90 Refer to the exhibit: The code should create a new tenant named Cisco via the Cobra SDK, which shows up after the execution of this script in the APIC dashboard. Which code must be inserted into the red box to create this tenant? A. Tenant = NewTenant(name=‘Cisco’) B. tenant — Tenant(topMo, name-Cisco’) C. Tenant = Tenant(topMo, name=‘Cisco’) D. Tenant = Tenant(‘Cisco’)

When using the Cisco Intersight API, the Secret Key is only available at the time of API Key creation, which is why option B is correct. An API Key is indeed composed of a Key ID and Secret Key, making option C correct as well. The other options do not apply as per the standard practices for API authentication

The -brief command in the Cisco bigmuddy-network-telemetry-collector is used to display only the message headers. This command provides a concise view of the telemetry data streamed from XR routers, which is useful for quick inspections or debugging purposes without the need for full message details1.

References := Cisco Code Exchange, VCEGuide

 Cisco Intersight REST API uses HMAC for authentication, where the message content and headers are signed using an API Key ID (A), and the Cisco Intersight Web service verifies the signature with the RSA public key for the API Key ID ©. The SHA384 hash (B), RSA private key challenge (D), and SHA256 hash (E) are not described in the authentication method for Cisco Intersight REST API requests.

The command telemetry_receiver.py --ip-address -port  is used to start a Python network telemetry collector. This command specifies the IP address and port where the telemetry receiver will listen for incoming telemetry data from network devices

 The network bootstrap program used by Cisco NX-OS for iPXE is called iPXE-POAP (Power-On Auto Provisioning). This process assists in automating the installation and configuration of Nexus switches. POAP automates the process of upgrading software images and installing configuration files on switches that are being deployed in the network for the first time. References: Cisco official documentation and training materials.

To isolate a new package from the main code base, creating a new virtual environment is the best practice. This allows for the installation and testing of the new package without affecting the existing code or dependencies. Performing a pip install of the new package within this isolated environment ensures that any potential issues or conflicts are contained. References :=

General best practices in software development for package management and virtual environments.

In the NXAPI-CLI JSON-RPC interface on Cisco Nexus switches, the ‘cli’ command is used to execute non-configuration CLI commands, which is equivalent to a POST operation in this context. Therefore, option A is correct. References:

Official documentation from Cisco regarding NXAPI.

Kubernetes deployed with the ACI CNI plug-in offers Namespace Isolation and Cluster Isolation. Namespace Isolation segregates resources within the same cluster using Kubernetes namespaces, while Cluster Isolation ensures complete separation between different clusters. References:

Cisco ACI Documentation

Cisco Learning Network

When exploring automation capabilities for ACI, it’s beneficial to:

B. Look for an open-source package or SDK: These resources can simplify the process by providing pre-built functions and methods for common tasks.

C. Use the API Inspector and test API Calls: The API Inspector within ACI allows you to see the API calls that are made when you perform actions in the GUI, which is invaluable for understanding how to automate those actions.

References:

ACI documentation on Cisco’s official website

Community forums and discussions on Cisco’s automation tools

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